Document Detail


An Insight into the Biophysical Characterization of Insoluble Collagen Aggregates: Implication for Arthritis.
MedLine Citation:
PMID:  25011697     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Misfolding and aggregation of proteins is involved in some of the most prevalent neurodegenerative disorders. The importance of collagen stems from the fact that it is one of the dominant component used for tissue engineering and drug delivery applications and is a major component of skin, tendon, bone and other connective tissues. A systematic investigation on the conformation of collagen at various concentrations of glyoxal is studied by various biophysical techniques such as Trp fluorescence, ANS binding, Circular dichroism (CD), ATR-FTIR, Congo red (CR) assay, Rayleigh light scattering and Turbidity measurements. At 60 % (v/v) glyoxal, collagen retains native-like secondary structure, altered Trp environment and high ANS fluorescence, characteristic of molten globule (MG) state. At 80 % (v/v) glyoxal, insoluble collagen aggregates are detected as confirmed by decrease in Trp and ANS fluorescence, increase in non-native β sheet structure as evident from far-UV CD and FTIR spectra, increase in Thioflavin T fluorescence, Rayleigh light scattering, Turbidity measurements, as well as red shift in CR absorbance.
Authors:
Samreen Amani; Anas Shamsi; Gulam Rabbani; Aabgeena Naim
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-11
Journal Detail:
Title:  Journal of fluorescence     Volume:  -     ISSN:  1573-4994     ISO Abbreviation:  J Fluoresc     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9201341     Medline TA:  J Fluoresc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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